We inherited a parking area that is made of large river rocks. I got
the bright idea of using a pressure washer to blast out the weeds and
grubby hard soil that was entrenched between the rocks.

I had been told by a friend that there was a type of 'sand/gravel'
that could be used between the rocks that would 'solidify' when
dampened and block any new weeds from coming through. Unfortunately,
I later found out that this type of sand is only for a paver type of
crack. The areas between these rocks are up to two inches.

My next thought was to use some kind of coarse sand to fill the
cracks. In my absence, hubby ordered river sand and spread it. Now we
have a problem in that we took out a bit too much with the power
washer and destabilized some of the rocks. The river sand does
nothing to solve this problem. I want to stabilize the area with
something that is easy to care for. There are a lot of leaves than
come down in this area and I would like to be able to use a leaf
blower. This, of course, would blow away the river sand.

Any thoughts on how I can stabilize the rocks while still showing off
their inherent beauty and yet still be able to use a leaf blower on?
The only thing I can think of was my original thought of a coarser
sand than what was put down, but I think I might still have a problem
with the leaf blower. What I need is sand glue...lol

Any help much appreciated...